U.S. OSHA recommends that individuals or organizations performing hazard classification should consult which of the following groups for resources and information about carcinogenic risks to humans? Select all that may apply.
A. National Fire Protection Association (NFPA)
B. National Toxicology Program (NTP)
C. American Conference of Governmental Industrial Hygienists (ACGIH)
D. International Agency for Research on Cancer (IARC)